Accessory minerals in the K. Haritonov alkaline massif (Western Zabahkal'e) (in Russian)
The characteristics of the accessory minerals in the rock massif are reported. According to the association of the primary accessory minerals the alkali syenites and subalkali granitoids pertain to the sphene-ilmenite-magnetite type with constant presence of zircon and apatite. Zircons, magnetites, and apatites, precipitated in the early and later magmatic stage of crystallization, differ according to typomorphic characteristics. Data from the quantitative and semiquantitative analysis of the accessory minerals showed an increased concentration of Zr, Nb, Th, Sc, Y, La, Ce, and Yb. Zn, Pb, Cu, Bi, Sn, and Be appear as characteristic elements. A regular increase of their concentration in the accessory minerals from granitoids of the concluding intrusion phases was noted. Analogous regularity was found in the distribution of Se, P, and Th. The accumulation of these elements in the minerals from the latest intrusion formations is closely connected with the relative increase of the concentration in the granitoids of zircons, rutile, anatase, fluorite, and pyrite as well as with the appearance of new accessory minerals: thorite, orthite, and galena. Under favorable conditions their accumulation in local zones is possible. (tr(auth)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-29-000357
- OSTI ID:
- 4439271
- Journal Information:
- Zap. Vses. Mineral. Obshchest., no. 4, pp. 430-437, Journal Name: Zap. Vses. Mineral. Obshchest., no. 4, pp. 430-437; ISSN ZVMOA
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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